Rotary cutter.



C. F. BALL.

ROTARY CUTTER.

APPucATloN FILED lum/11.1915.

Patented Dec. 5, 1916.

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Imm/@my rrnn sarna r l p1 1 CHARLES F. BALL, OF NEW YORK, N. Y., ASSIGNOR TO BALL @t JEVELL, OF BROOKLYN, NEW YORK, A FIRM.

ROTARY CUTTER.

Specification of Letters Patent.

Patented Dec. 5, 1916.

Application filed July 17, 1915. Serial No. 40,513.

To all '1r/Loin. 'it may cro/litera Be it known that I, CHARLES F. BALL, a citizen of the United States, and resident of the borough of Queens, in the city and State of New York, have invented a new and useful Improvement in Rotary Cutters, of which the following is a specification.

This invention relates to rotary cutters of that type which are particularly adapted for reducing to a uniform linen-ess such materials as corks, roots, herbs, spices, grain, etc.

The object is to provide a vibrating device which is cont-rolled and. operated by the drive shaft of the machine and in uni son therewith, whereby the output of the machine will be greatly increased, and a greater uniformity of the particles is obtained.

A practical embodiment of my invention is represented in the accompanying drawings, in which- Figure 1 represents a half front view and a half vertical longitudinal section, Fig. 2 represents an end elevation, and Fig. 3 represents an enlarged detail longitudinal section of a portion of the screen and vibrator.

The rotary cutter shaft is denoted by 1 and it is provided with any suitable num ber of cutter heads 2 to which the rotary cutters3 are secured. The rotary shaft is mounted between upper half bearings 4 and lower adjustable half bearings 5, the lower half bearings being guided in their vertical adjustments within recesses 6 in the top plates 7 to which the legs 8 are secured.

A casing is formed around the rotarycutters, which casing comprises a bottom screen 9, cheek pieces 10, 11, and end plates consisting of upper half sections 12, and lower half sections 13. The upper half sections 12 of the end plates are formed integral with the upper half bearings 4 and the lower half sections 13 of the end plates are formed integral withithe top plates 7. Bolts 14 serve to secure the upper half bearings, the top plates and the legs together, leaving the screws 15 in the lower half bearings and top plate, free to adjust the lower half bearings thus forming a very simple and effective device for taking up wear in the bearings without disturbing any of the other parts of the machine.

A feed opening is left between the free ends of the cheek pieces 10, 11, and a hopper 16 is secured in position to direct the material to be disintegrated, to the cutters. This hopper is preferably made of sheet metal and is provided with a top hinged door 17 and a front hinged door 18. The front door 18 is held closed by suitable latches 19.

The cheek pieces 10 and 11 are provided with the usual stationary adjustable cutters (not shown), which are locked in the cheek pieces by means of bolts 20 and nuts 21.

The cheek pieces 10 and 11 are also hinged at 22, 23, to the lower half sections of the end plates to be readily swung outward without dismounting the parts, the upper half sections of the end plates being provided with elongated slots 24, 25, opening through the periphery of the upper half sections of the end plates and being concentric with the hinges 22, 23, of the cheek pieces. elongated slots 24, 25, and have their heads bearing against the outer faces of the upper half sections of the end plates, so that when the bolts are screwed home the cheek pieces will be clamped rigidly to the end plates. To prevent the cheek pieces from unintentional spreading apart when subjected to great strain, l provide locking washers 28, 29, which surround the bolts 26, 27, and are fitted to enter circular recesses 30, 31, at the inner end of the slots 24, 25. When it is desired to release the cheek pieces, the bolts 26, 27 are unscrewed a suiiicient distanceA to permit the washers 28, 29, to be removed from their recesses 30, 31, thus permitting the bolts to pass outwardly through the slots 26, 27, as the cheek pieces are swung on their hinges 22, 23.

The description of the rotary cutter herein shown is the subject matter of my Patent No. 900,255, dated October 6, 1908, and is only taken as one form of cutter to which my device may be attached. I will now proceed to describe my invention as applied to this form of cutter.

An oscillating lever having a short arm 32 and a long arm 33, is fulcrumed at 34 on a bracket 35 depending from one of the legs 8. The short arm 32 is provided with a ball end 36 which coacts with a socket 37 in the ends of a strap 38, the upper end of which strap engages an eccentric 39 fixed on the rotary shaft 1. A plunger 40, having a head Bolts 26, 27, are located within theV of thelarm's 33 and is yieldingly heldat the -limitofits upward movement by a spring 42 which is interposed between the head and Y the arm. The Vlower end of the plunger is vscrew-threaded for the reception of nuts 43 for adjusting the vertical movement of the Yplunger and locking it. rIhe head 41 is provided vvith a recess 44 in Which is secured aV cushion or buffer 45 of leather or other suitable material that will absorb shock and prevent noise when coming in contact With and fallen onto the screen, so that the particles may immediately pass through the screen, and thereby obtain a uniformity of the product and prevent an undue accumulation of the product Within the machine.

It is .obvious that slight changes may be resorted to in the form, construction and arrangement of the several parts Without de- Y parting from the spirit and scope of my in- V What I claim isz'- vention; hence I do not Wish to limit myself strictly to the structure herein set forth, but

' l. A rotary cutter having a drive shaft, a bottom screen, and a vertically movable plunger operated from the drive shaft for intermittently striking the screen for dislodging the particles thereon.

2. AA rotary cutter having a drive shaft, a

bottoml screen, and a vertically movable yielding plunger operated from the drive shaft for intermittently striking the screen Vfor dislodging the particles thereon.

5. A rotary cutter having a drive shaft, a

bottom screen, a vertically oscillating lever, an adjustable plunger adapted to be moved vertically in and by said lever, and means operated from the shaft for rocking said lever.

6. A rotary cutter having a drive shaft, a bottom screen, an oscillating lever, an adjustable and yielding plunger adapted to be moved vertically in and `by said lever, and means operated from the shaft for rocking said lever.

7. A rotary cutter having a drive shaft, a bottom screen, an oscillating lever, a vertically movable plunger carried by said lever having a cushioned head, and means operated from the shaft for oscillating said lever.

In testimony, that I claim the foregoing as my invention, I have signed my name this 24th day of June, 1915.

CHARLES F. BALL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

